[GHC] #3963: Entered absent arg

[GHC]

#3963: Entered absent arg
---------------------------------+------------------------------------------
    Reporter:  LouisWasserman    |        Owner:              
        Type:  bug               |       Status:  infoneeded  
    Priority:  normal            |    Milestone:  6.12.3      
   Component:  Compiler          |      Version:  6.12.1      
    Keywords:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Testcase:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
---------------------------------+------------------------------------------
Changes (by igloo):

  * status:  new => infoneeded
  * milestone:  => 6.12.3


Comment:

 I see that the "Entered absent arg" message is in the core, but what
 problem is it causing? Can you give an example of an expression, the
 result you expect, and the different outcome that you actually get,
 please?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3963#comment:2>
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